Milking device.



A. SABFOE.

MILKING DEVICE.

' APPLICATION mep 050.113.1911.

Patented N0v .2,1915.

Zvi

narran .aras sa ENT FFICE i AXEL SABROE, OF HADERSLEBEN, GERMANY.

MILKiNG nnvicn.l

Specification of Letters Patent.

Patented Nov. 2, 1915.

Application filed December 16, 1911. Serial'No. 666,205.

T0 all whom, -z't ymay Concern.

Be it known that I, YA xnL Sannois, subject ofthe Emperor of Germany, residing at Hadersleben, Germany, have invented cer tain new and useful Improvements in Milking Devices, of which the, following is a specification, .reference being had therein to the accompanying drawing..

My invention relates to milking devices, has especial reference to that class of devices in which the suction in the milking cups is interrupted by atmospheric pressure when-the milk'ceases to flow, has for its object economy in construction, and vconsists in certain improvements which will be fully disclosed in the follow-ing specification and claims.

In the accompanying drawings, lwhich form part" of this specification:-Figure 1 represents a vertical transverse section partly ,in elevation of a milking cup or tubejembodying my invention. Fig.l 2 is a like view embodying a modilicaticnof my invention. Fig. 3 is a like view embodying another modification of the invention and Fig. l is a like view showing a further modification in l which the lower part of thechamber a is enlarged.

Reference being had to the drawings and the designating charactersthereon, "v indicates a teat-.cup connected to a member a having a chamber a communicating with thev teat-cup through opening b, and. with the suction device, not shown, through tube cl,

.and in the chamber a are means' for closing In each of the three forms shown, the

teateups are in communication with the atmosphere through port m. Y

In Fig. 1, the piston g besides litting in the chamber a. has ailower reduced exten` sion fitting within a reduced extension of;l

said chamber, which is open to the atmosphere at its lower end, and a passage .h through the piston g and the member e; said v vacuum in the teat cup.

' passage being' contracted at its upper end,

atfords communication with the atmosphere and the interior of the teat-cup o.

In Fig.' Q the ball valve z', which is substantially ot' the same diameter as the chamber a 'rests on the upper end ofthe member e'. .at the lower end of the structure, which lmay be lcalled a supplemental piston, and

communication from the atmosphere to the teat-cup is had through the port In Fig. 3 the closing device is provided with a flexible plate or diaphragm n, which vibrates in the chamber a and'engages an extension e of the member e.

In Fig. 4 the chamber a is provided with the ball valve i as in Fig. 2. In this con-. struction the upper outlet f vis omitted, to facilitate the cleaning of the device,jwhich can be effected' by increasing the diameter of that part ofthe chamber a inA which the val-ve c' moves. The vmilk will then flow around the valve andV will be discharged.

through the opening f.

AThe operation isa's follows: As soon as the llow of the milk ceases, thefpassage b is closed by the piston valve g, the ball valve or the diaphragm n, operated byatmosplieric pressure upon the lower and exposed end of the member 'e due to the air being exhausted from chamber a above and below the members g. c' or n through ports j' and f and tube d which latter is in communication with the suction device, when'airwill enter the teat-cup through port m and relieve the The increased pressure on the upper face of the valve will then cause the same to fall and again open the passage Z), and the cup being again eX- hausted through'the port f" apulsative acltion will beset -up which will facilitate the flow of any 'remaining'millc 4 In the construction shown 1n Figs. I, 2

and 3, .the ow of milk is through the openings f. Asthe piston, the valvel or the diaphragm rise, the space below them .increases and vice versa. The opening f should be large enough so' ,that no hindrance will occur from increased vacuum effects as they ii'ston. the valve ort-he diaohraom move u A 'and down.

" It' the necessary tension has been produced in the teat-cup's, the closing device Will open again; the operation will produce suctionin the lower compartment a by means of the opening f, The milk in the teat-cups is withdrawn. by suction and. the operation is repeated successively.

When the balli has some play in the chamber a as Fign 4:, the 'milk Hows downward to the lower ycompartment thereof and through port f intothe suction tube al yand the iow of the milk will be continuous.`

Having thus fully described my invention, what claim is: `1

l. In a milking device, a teat-cup, a suc- -tion connection to vsaid cup comprising a -chamber 1n communication with the interlor of the cup, and movable 'means separating said chamber into twor compartments, both of which are in communication with the suction, said. means adapted to close communication between'the cup and the chamber and having an extension through the outer `end of the'chamber being adapted to be acted on by atmospheric pressure toI regulate the lflow of milk.

.2. In a milking device, a teat-cnp having an air port in the body thereof, a discharge4 trol said discharge, and a suction connection in communication with both lof said compartments. v 3. In va milking device,` a teat-cupprovided with a suction connection,l means for keeping said cup in'constant communication with the atmosphere, a chamber adjacent to the suction connection, a discharge passage for milk being provided between the tent-cup and said chamber, means Within the chamber for separatingthe same into two compartments and for controlling said discharge passage, and means for connecting the two compartments with the suction tube.

In testimony ywhereof I aflix my signature in the presence or" two witnesses.

AXEL sABnoE.

iwitnesses: i

WOLDEMAR HAUPT, HENRY HASPER. 

